Portion of a packaging carton



FIG. 1 is a front perspective view illustrating an upper surface, leftside and front of a portion of a packaging carton, the boundaries of theclaimed portion being shown by dot-dash lines;

FIG. 2 is a rear perspective view illustrating a lower surface, rightside and rear of the portion of the packaging carton of FIG. 1;

FIG. 3 is a front perspective view illustrating an upper surface, leftside and front of an alternative embodiment of a portion of a packagingcarton, the boundaries of the claimed portion being shown by dot-dashlines; and,

FIG. 4 is a rear perspective view illustrating a lower surface, rightside and rear of the portion of the packaging carton of FIG. 3.

The broken lines in the figures showing other portions of a packagingcarton are for illustrative purposes only and form no part of theclaimed ornamental design.

The ornamental design for a portion of a packaging carton, as shown anddescribed.